Truck-bolster.



No. 693,220. Patented Feb. 11, I902.

A. BELLOWS.

TRUCK BOLST ER.

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Pa tented Feb. n, 1902.

A. B. BELLUWS.

TRUCK BOLSTER. (Application filed Nov 9, 1901.)

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5 UNIT D STATES,

PATENT OFFICE. f

ARTHUR B. BELLOWS, OF PITTSBURG, PENNSYLVANIA.

, TRUCK-BOLSTER.

SPECIFICATION forming part of Letters Patent No. 693,220, dated February '11, 1902.- Application filed November 9, 1901. Serial No- 8l ,670. (N0 model.)

1'0 a/Zt whom it may concern: Be it known that I, ARTHUR B. BELLows, of Pittsburg, Allegheny county, Pennsylvania, have invented a new and useful Truck- Bolster, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is a partial transverse section on the line II of Fig. 2 looking toward the left. Fig. 2 is an end elevation showing one form of my improved bolster in place, the side por tions of the truck being broken away. Fig. 3 is a partial top plan :view of my improved bolster. .Fig. i is an end perspective view showing the cutting away of the I-beam flanges, and Figs. 5, 6, and 7 are detailviews of a modified form.

My invention relates to truck-bolsters for railway-cars, and is designed to afford a simple and strong construction which can be easily and cheaply made from commercial I- beams or channels. v

In forming my improved bolster with I- beams, as shown in Figs. 1 to 4, I provide two beams 2 2, which are placed in parallelism Each of the I-beams at its ends is shaped as shown in Fig. 4 -that is, each of the lower flanges 3 3 is cut away for a suitable distance from the end, while the outer top flange 4 is similarly cut away an equal distance. Vertical anglebars 5 5 are then riveted to the webs of the I-beams in the position shown in Fig. 3, these angles having their projecting flanges preferably beveled at their lower ends, as shown at 6 in Fig. 2. In this figure, 7, indicates the inverted-arch bar, Sthe spring-plank channel-iron, and 9 the coiled springs for the bolster. These springs bear at their upper end upon the spring-bearingseat 10, which is secured between the ends of the I-beams, preferably by the same rivets that secure the angles 5 in place, together with additional riv ets, through flanges 10 of the seat. The bolster guide-bars 11 extend vertically between the angles 5 and the end portions of thejI-bea'nrflanges3 and 4, of .which the flanges 3 are preferably cut on, a bevel, as shown in Fig. 3. The I-beams of the bolster are secured together between its end portions by plate 12, 13 being the truck center-plate and 14: a reinforcing-plate for the central part of the bolster. V

In Figs. 5 to 7, inclusive, I show a construction wherein two channels 2 are employed with outwardly-turned flanges 4', both of bolster body, since a strong construction is afforded which can be easily and cheaply made from commercial'flanged shapes, such as channels or I-beams.

I claim-- l. A truck-bolster having its body formed of flanged rolledshapes, the exterior flangesbeing cut away from the ends of the shapes, and exterior verticalguides secured to the websof theshapes at the cut-away portions; substantially as described.

2. A truck-bolster body formed of two I- beams with their exterior flanges cut back from the'ends and exterior vertical guides secured at the cut-away portions, the inner lower flanges also being cut away, and a spring-bearing seat secured between the ends of the shapes; substantially as described.

3. A truck-bolster comprising a pair of I- beams connected bya bottom plate, the outer flanges of said beams being cut away at their end portions, vertically-extending angles secured to the end portions of the web, the innet lower flanges being cut away at the ends,

and a. spring-bearing seat secured between Witnesses:

H. M. GoRWIN, L. A. OONNER, Jr.

The an- 

